Canopy for electric fixtures.



PATENTED DEC. 17, 1907.

No. v$73,994:.

' J. H. DALE.

CANOPY FOR ELECTRIC FIXTURES.

APPLICATION FIL BD MAY 18, 1906.

To all whom it may concern.

' UNITED STATES PATENT OFFICE.

JOH HENRY DALEQOF NEW YORK, 'N. v.

' CANOPY i on ELECTRIC munns.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed May 18. 1906. Serial No. 317.448-

Be it known that I, JOHN HENRY DALE, 'a citizen of the United States, residing at the city of New York, in the county of New York and State of New York, have invented certain easy to construct, very strong and durable,

which is pleaslng in appearance, and which conforms to the usual insurance regulations.

With these and other objects in view, the invention consists in the construction, combination, in the location and in the arrangement of parts, as hereinafter set forth and shown, and finally particularly pointed out.

in the appended claims.

In the drawings: Figure 1v is a front view of a canopy embodying the principles of my invention; and Fig. 21s a sectional view of the same.

One of the provisions of insurance regulations regarding electricwiring is that the usual cano y of the bracket must not be close enoug to the wall to endanger fire in case the canopy should become charged by a ground connectionor in any other way. The circuit wires are entirely protected from the wall by thebracket, and the usual metallic fixtures and parts, but it is evident that'if the circuit wires are (grounded, the canopy will become electrifie and on account of the close proximity of the canopy to the 'wall, the

liability of fire from this cause is considerable. In order .to remove this danger so far as possible, the insurance regulations have prescribed that a stripof fiber or'insulating separate the same from the sur ace of the.

material be included in the cano y so as to wall by a considerable distance. This is an unsightly arrangement, and somewhat expensive on account of the quantity of fiber necessar and it is desirable to find a way to avoid t s troublesome construction. In carrying .out my invention I provide a construction by which the separation of the canopy from the wall is made unnecessary,

adapted to fit snugly against the faceoI rated, as shown at and the insurance regulations fully complied with, by a more convenient and moreornamental form of fixture than hitherto used.

Referrin to the drawings in which like partsare esignated by the same reference sign, 1 indicates a canopy-conveniently spun or stamped from sheet metal in the ordinanv way, the canopy terminating in an ed el2, t is wal At itsother end the canopy is perfo foration I lace a beaded ring 4, the inner edge of which is tur'nedover, as shown at 5, so as to closely embrace the walls of the canolpy about the perforation 3. In this way e beaded'ring 4 virtually forms part of the coi i plete canopy; 1

thin the beaded ring 4, and conven-.

iently positioned by molding, or in any other way,'is' an insulating rin 6 of fiber or hard rubber, and having an lnternalbore 7 of suitable diameter to engage the usual-tubing of the-fixture. The tubing is indicated in dotted lines in Fig. 2.

or boss 8 upon the insu ating ring 6, which boss is extended throu 11 an o ening 9 within the beadedring 4, as 0 early s own in Fi 1. 10 indicates a set screwthreaded in the fioss or protuberance 8,'and which may be tight- 3, and within this perp For the pur ose of firmly positioning the 7 canopy upon t e tube I rovide an extension cr ed to engagelthe usual tube of the fixture v I and firmly hold the canopy in place.

In use it is merely necessary to assemble the canopy upon the usual fixture, as shown 7 in thedrawings, so that the edge 2 is closel disposed against the surface of the wal The set screw 10 is then tightened and the canopy thereby screwed in position upon the fixture. On account of the fact that the insulating ring. 6 separates the-canopy from the bracket tube at all points,-it is im ossible for the canopy to become 'grounde under any circumstances, so that the fire regulations are satisfied, notwithstanding the fact that the canopy rests snugly against the surface of the wall. In this action the set screw 10 does not interfere, since, although this set screw may become grounded, it is effectually se arated from the beaded ring 4-, and from t e canopy by the boss or protuberance 8 on the insulating ring.

What I claim, is:

A canopy-for electric fixtures comprising a sheet metal shell having a perforation, a

beaded ring engaged in said-perforation and having its inner edge turned over so as to 1 therethrough, and a set screw received in closely embrace the wall of the shell about opening on one side thereof, an insulating ring with a cylindrical bore of llIllfOI'Ill transof said ring, said oss having a threaded hole said threaded hole. the perioratlon, 881d beaded ring havlng an 10 .ln Witness whereof, I subscribe my signature, in the presence of two witnesses.

JOHN HENRY DALE. Witnesses:

F. A. HOPTON, E. E. BAYNON. 

